Lawn sprinkler



-' A. N. SLACK LAWN SPRINKLER I5 Sheets-Sheet 1 Filed Nov. 11 1922 A. N. SLACK LAWN SPRINKLER Aug. 5 1924.

Filed Nov. 11; 1922 3 Sheets-Sheet 2 314mm S16; 01%

Aug. 5 1924.

A. N. SLACK LAWN SPRINKLER Filed Nov. 11, 1922 3 Sheets-Sheet 5 gwucntoz ZNS/ao/z Patented Aug. 5, 1924.

inane FEE LAWN srnrnnnnn.

Application filed November 11, 192a Serial No. 600,374.

To all whom it concern:

Be it known that I, ALBERT N. SLACK, a

citizen ofthe United .States, residing at Bakersfield, in the county of Kern and State of California, have invented'certain new and useful Improvements in Lawn Sprinklers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the; art to which it appertains to make and use the same.

The invention has relation generally to ir- 1 rigating mechanism and specifically to means for 'watering lawns and its primary ob ect'1s the provision of a mechanism which is automatic in operation in sprinkling a lawn for a determinate area both longitudi nally and laterally, said mechanism being adjustable to independently vary the length and breadth of the area to be, sprinkled.

Other objects and advantages willbe apparent and suggest themselves as the nature of the invention is understood.

lVhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet difierent conditions and requirements, various changes 1n the form, proportlon and mlnor' details of construction may be resorted to without departing from the nature of the invention. Referring to'the accompanying drawings a forming, a part of the application,

. and valve mechanism partly in section,

Figure 1 is a detail view in elevation of a. lawn sprinkler embodying the invention,

Figure 2 is a diagrammatical section,

Figure 3 is an elevation of the cylinder Figure 4 is a detail view of the "spray pipe and means for oscillating the spray nozzleg Figure 5 is a sectional detail on the line" 55 of Figure 4, looking to the left as dicated by the arrow.

Figure 6 is a diagrammatic plan new of the means for intermittently rotating the spur wheel by means of which the nozzle is oscillated. 1

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The mechanism comprises a pipe 1 pro pipe 1 vibratesthe nozzle2 laterally, the amplitude of oscillationdetermining the breadth of the lawn to be sprinkled. The oscillatory. movement of the nozzle 2 determinesthe length of thezarea of. lawn to be sprinkled. These oscillatory movements are adjustable whereby provision is had for varying the length and breadth of the area of lawn to be sprinkled. Water from a suitable source of supply is supplied to the pipe 1 and, his essential that such water be supplied under pressure whereby to throw the same some distance after leaving the nozzle, 'as well as to operate the mechanism whereby the supply pipe andspray nozzle are controlled in their movement.

The mechanism includes a cylinder 3 which is divided by means of a partition 4 into an upper chamber 5 and a lower chamber 6. A piston 7 is disposed in the chamber 5 and its rod 8 operates through the upper head of the cylinder and is connected with an arm 9 pivoted to a suitable support at 10. A diaphragm 11 is located in the chamber 6 and a stem 12 fastened thereto at a central point operates through the lower end ofthe cylinder and is connected to a lever 13 pivoted at 14: to the cylinder. Ports 15 and 16 are provided at the upper and lower ends respectively of the chamber 5. A passage .17 is in communication with the port 15 and terminates a short distance from the port16 and is adapted to be controlled by means of a slide valve 18 which is hollow and coacts with an inletport 19 disposed intermediate the port 16 and the adjacent end of the passage 17. A rod 20 connects the valve 18 with the outer end of the lever 13 and as the latter is actuated, the valve 18 is moved to alternately connect the inlet port 19 with the'port 16 and passage 17 and to uncover said port 16 and passage 17, whereby water is alternately supplied to opposite ends of the chamber 5 to effect a positive movement of the piston 7 therein, whereby to operate the pivoted arm 9.

Ports 21 and 22 communicate with upper and lower portions of the chamber 6 upon opposite sides of the diaphragm 11. An inlet 23 is adapted to be alternately connected with the ports 21 and 22 by means of a slide' 'va'lve 24 similar-in construction and operation to the valve 18. Movement of the diaphragm 11 efie'cts a corresponding move-' ment of the lever 13 which is connected thereto by means of the element 12, whereby to operate the valve 18 and control the supthe valve 24 and is provided Withspaced stop collars 26 and 27 which alternately engage the valve 24 and eiiec't av movement thereof. The arrangement is such that the valve 24a is operated as the piston 7 reaches the limit of its stroke in. eachdirection.

A link28 ad-justably connects the pivoted arm 9 withan arm: 29-projecting laterally, from" the;- supply pipe and: movable .-there v with; The arm 9; is-provided with aaeurved. slot 30 which receives .a bolt 31 which serves toclamp'; a slide 32 to thearm 9 andsto which; theupper end of the link28 is1pivotedu As, the piston 7 moves up and-down in thecyl indei' 3, the-arm 9 isvibratedandiefieetsarocking or oscillation .of the-supply piped, whereby the nozzle 2 is moved-laterally rom. one'side to the other. At the same-time; the valve 24: isactuat'ed to control the-sup ply of waterlto the chamber,- 6 "whereby; the. diaphragm I'Lism'oved up and down whereby to operate the valvelS-whichcontrols; the

supply 0t water to the chamber *5 in the manner herein stated. r I

An arm 33 projects from the nozzle- 2 anda link 34-adj-ustably connects it with-a spur Wheel 35," thelatter having a slotted member 36 atone sidefwhich receives a bolt 37 to which thelink 34 is pivoted andwhiclr is adjustable inthe slot of the member 36 and adapted to be made fast in therequired adjusted position. Cams 38 and 39 are disposed in the path of the spurs 100f the spur- Wheel 35, whereby to effect an, intermittent rotationof the spurrwheel-whereby to pscillate the nozzle 2. The cams. 38 and 39V-are disposed upon opposite sides of; the frame- 3 otthe spur wheel35 when" the latteris in vertical position" and coact-with the spurs 40- to'impart an intermittent rotary movement to the spurwvheel. Aharigerll is-tast to the pipe l-an'd constitutes a mount for'the spur Wheel 35. It'will thus be understood that asthe pipe 1 oscillates :or rocks, the spur: wheel 35' mounted'thereon receivesa c'orre: sponding oscillatory movement, whereby the spurs 40 are caused to ride upontheicams 38' and 39 which areso"disposed"asfitowadevance the spur wheel at eafeh voscrllatiorr? thereof. i

From the foregoing taken in connection with the accompanying drawings it'wil-llbei understood thatthe inventionfprovides a:

mechanism whereby apredetermined area-eff breadth and the mechanism isadjus'tableito I vary thea'rea of-lawn'to be sprinkled byad' justiirg the 1 links 28 and i 314 in the manner stated.

What is claimedis length and breadth of a given area, means.

for varying the amplitude cit-oscillation. of V the-pipe, and other means for varying,. the amplitude of oscillationrofthe nozzle, where by to adapt the device to a variablearea to be sprinkled,

In a lawn sprinkler; a :water pipe have ingra, lateral outlet, means for ,impa rti ngan oscillatoryv movement to the water. pipe, a nozzle pivotally mountedupon; said pipe, a spun wheel-.mounted. upon the; water pipe, connecting means between said spur. wheel: andnozzleior vibrating the lattenin. aplane atright angles toathe oscillatory movementof said-pipe, and cooperatingcams disposed in: the pathof the, spurs o f..the spur 1 wheelto efieet an intermittent ,rotarymovement oi the latter simultaneously with. -itsos cil:latory V movement. 3.. A lawn sprlnkler COmpI'lSHlgh a, water pipe, a-nozzle pivotally; mounted upon" the.

Water pipe, a pivoted -arm,means adjustably connecting the pivoted 'arm 3 with the Water pipe to admit oiiimparting a variable oscilf' latory movement to the latter, iaspur wheel mountedwupon'the ater pipe, means ad justably connecting the spur, Wheelwith the nozzleto; impart a variable-oscillatorymove ment tort-helatter, ,cams adapted to coop-2 era-t'ewith the; spurs of lsa'i-d spur; Wheel to impartan intermittent rotary mo-vement thereto, and a water -motor havingponnection Withsaid-aforesaid pivoted arm-.-

4. Inala-Wn sprinkler,- a water'pipeh'aving a: lateral outlet, mean-s for impartingan oscillatory movement to'-'the water pipe, a nozzle pivotally mounted upon said pipe, a spur Wheel mounted upon the water pipe, a means for forming a connection between the said spur wheel and nozzle tor vibrating the latter-in a planegat right angles to the oscillatory movement of said pipe, rmeans for varying the eccentricity of the connection be tween fsaidvlinkEand the spur wheel to vary the: oscillatory 'movement imparted to the nozzle; and -cooperatiav cams disposed in the i path of the spurs of the spur Wheeltoetfeet intermitent rotary movement of the latter simultaneously 1 with the oscillatory ":move

ment .otthe waterp-ipe:

In testimony whereof Iaiii-x my signature presence of two} Witnesses:

i V ann'nn'r nrstaonr- Witnesjses;

CL" W: NEWBERY: 

